Home / 7,270,465.64-10,905,665.65-1,878,657.71

Finding the Fourth Proportional to 7,270,465.64, 10,905,665.65 and 1,878,657.71

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Solution

The fourth proportional to 7,270,465.64, 10,905,665.65 and 1,878,657.71 is: 2,817,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270,465.64 : 10,905,665.65 = 1,878,657.71 : x
  2. Step 2: Convert to fraction form
    7,270,465.64/10,905,665.65 = 1,878,657.71/x
  3. Step 3: Cross multiply
    7,270,465.64x = 10,905,665.65 × 1,878,657.71
  4. Step 4: Simplify right side
    7,270,465.64x = 20,488,012,796,829.69
  5. Step 5: Solve for x
    x = 20,488,012,796,829.69/7,270,465.64
  6. Step 6: Final answer
    x = 2,817,978.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.